Routing method of wireless sensor network

A wireless sensor and sensor node technology, applied in network topology, wireless communication, advanced technology, etc., can solve problems such as information transmission, network paralysis, energy waste, etc., and achieve the effect of ensuring reliable operation and prolonging service life

Active Publication Date: 2014-05-21
宁波中科集成电路设计中心有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most routing methods generate the shortest path based on the principle of the least number of hops, so some nodes will become bottlenecks because they are at the core routing position of data transmission, and a large amount of data transmission needs to be routed through these nodes
And these nodes will run out

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  • Routing method of wireless sensor network

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Embodiment Construction

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0041] A routing method for a wireless sensor network proposed by the present invention includes three parts: a newly powered sensor node obtains its own network address and an uplink routing path and a downlink routing path to become a network access node; each network access node obtains its own remaining When any network access node is powered off and leaves the wireless sensor network, it will become a power-off node, and then the network will be rebuilt.

[0042] Among them, such as figure 1 As shown, the specific process of the first part is:

[0043] a1. A newly powered sensor node broadcasts a route discovery message containing its own local unique address at a period of T1.

[0044] Here, T1 can be determined by the user. Generally, if T1 is short, it will affect the service life of sensor nodes. If T1 is long, it will prolong the j...

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Abstract

The invention discloses a routing method of a wireless sensor network. The method comprises that newly-powered-on sensor nodes obtain network addresses, up routing paths and down routing paths and become access nodes; every access nodes obtains the residual power capacity to perform network maintenance; the access nodes become powered-off nodes when powered off to a standby mode to perform network reconstruction. During the process that new nodes join in the network and the network reconstruction, due to the fact that every node does not need to storage the relevant information of the neighboring access nodes, a gateway takes charge of associating every node and the neighboring access nodes, and by means of path weight parameters, the gateway can evaluate the connecting quality of every path more easily, further, when the network changes, the gateway can generate optional paths, by comparing the path weight parameters, rapidly select out the optimal path which can balance flow distribution and energy consumption and timely issue the transmission path to a requested node for usage, the reliable operation of the network can be guaranteed and the service life of the network can be prolonged.

Description

technical field [0001] The invention relates to a wireless sensor network technology, in particular to a routing method for a wireless sensor network. Background technique [0002] In the process of supporting the development of the Internet of Things, wireless sensor networks (WSNs, WirelessSensorNetworks) that integrate distributed information collection, information transmission and information processing technologies play an important role. In the huge wireless sensor network, on the one hand, the sensor is the "sensory organ" for the machine to perceive the material world, which can sense heat, force, light, electricity, sound, displacement and other signals to provide information for the processing, transmission, analysis and feedback of the network system. The most primitive information; on the other hand, as traditional sensors gradually realize miniaturization, intelligence, informatization and networking, wireless sensor networks are being Advantages such as layin...

Claims

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Application Information

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IPC IPC(8): H04W40/10H04W40/24H04W84/18
CPCY02D30/70
Inventor 张健张从连黄晁李海红侯开宇高宇栋
Owner 宁波中科集成电路设计中心有限公司
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